disk accesses required 磁盘访问需要 ; 磁盘访问所需
Rather than make the disks faster, it's better to reduce the number of disk accesses needed.
加快磁盘运行速度不如减少所需的磁盘访问次数。
REMOCA is implemented within the virtual machine monitor, by intercepting guest events such as page evictions and disk accesses.
REMOCA 运行在虚拟机管理器中， 其基本工作原理是截获并处理虚拟机的页面淘汰、磁盘访问等事件。
For random accesses, the performance penalty can be ignored, and for sequential disk accesses, there are about 7-28% performance degradation.
对于随机读写安全所造成的性能损失几乎可以忽略不计；对于顺序读写，性能下降了7% - 28%。
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